Designed to be a direct swap out for your 25 size glow engine. This brushless out-runner will provide more power and with its high efficiency, long run times.
A quality motor, built specifically for planes designed to fly with a 25 size glow engine.

Spec.
Battery: 3~4 Cell /11.1~14.8V
RPM: 870kv
Max current: 32A
No load current: 10V/2.4A
Current capacity: 44A/15sec
Internal resistance: 0.03 ohm
Weight: 193g  (not including connectors)
Diameter of shaft: 5mm
Dimensions: 78x35mm

Required;
50A ESC
3S~4S Li-Po / 10 ~ 14-cell Ni-MH/Ni-Cd
11x8 ~ 14x7 prop

Suitable for sport and scale airplanes weighing 3 to 5.5 pounds (1.4–2.5kg).